Alert archive / Georgia / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 255, NWS Atlanta, GA

July 3, 2002Cherokee County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 3, 2002, 4:20 PM EDT for Cherokee County, Georgia. It was in force for 40 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 3, 2002, 4:20 PM EDT (20:20 UTC)
Expired: Jul 3, 2002, 5:00 PM EDT
In force: 40 min
Issued by: NWS Atlanta, GA
Area: Counties, with a storm outline in the text

County Cherokee County, GA

The radar

The Atlanta radar (KFFC), 89 km from the middle of the area, began a volume at 20:20 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Jul 3, 4:27 PM EDT	Hail 0.75	Holly Spgs, GA	A storm spotter reported dime size hail.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.3 hours before the alert went out and 88 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 204 J/kg
Mixed-layer CIN: -163 J/kg
Mixed-layer LCL: 947 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 3 m²/s²
0-3 km storm-relative helicity: 37 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

538 
WUUS52 KFFC 032020
SVRATL
GAC057-032100-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
419 PM EDT WED JUL 3 2002

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN CHEROKEE COUNTY IN NORTH CENTRAL GEORGIA

* UNTIL 500 PM EDT

* AT 415 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
A   SEVERE THUNDERSTORM OVER HOLLY SPRINGS...MOVING SOUTH AT 5 MPH.

* LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...HOLLY
SPRINGS.

HAIL TO THE SIZE OF GOLFBALLS AND WIND GUSTS TO 60 MPH CAN BE 
EXPECTED IN THE WARNED AREA. THIS STORM HAS A HISTORY OF GOLFBALL 
SIZE HAIL.

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL AFTER THE STORM HAS PASSED...AND THEN CALL THE NATIONAL WEATHER
SERVICE TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.

LAT...LON 3419 8436 3421 8458 3411 8456 3408 8438

The office that day

Everything else NWS Atlanta, GA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 2, 8:06 PM EDT	Severe Thunderstorm Warning	FFC	Pike	34 min
Jul 2, 8:07 PM EDT	Severe Thunderstorm Warning	FFC	Oglethorpe	38 min
Jul 2, 8:14 PM EDT	Severe Thunderstorm Warning	FFC	Meriwether	31 min
Jul 2, 9:29 PM EDT	Severe Thunderstorm Warning	FFC	Haralson, Polk	31 min
Jul 2, 10:57 PM EDT	Severe Thunderstorm Warning	FFC	Catoosa	33 min
Jul 3, 2:37 PM EDT	Severe Thunderstorm Warning	FFC	Dawson	23 min
Jul 3, 3:16 PM EDT	Severe Thunderstorm Warning	FFC	Pickens	29 min
Jul 3, 3:49 PM EDT	Severe Thunderstorm Warning	FFC	Cherokee	26 min
Jul 3, 4:01 PM EDT	Severe Thunderstorm Warning	FFC	Emanuel	44 min
Jul 3, 4:16 PM EDT	Severe Thunderstorm Warning	FFC	Hall	44 min
Jul 3, 4:39 PM EDT	Severe Thunderstorm Warning	FFC	Cobb, Fulton	36 min
Jul 3, 6:17 PM EDT	Severe Thunderstorm Warning	FFC	Madison	43 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2002 Every severe thunderstorm warning in 2002

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.